if __name__ == '__main__':
    '''a = [1,2,3]
    b = ("a","b","c")
    c = {"first","second"}
    print(list(zip(a,b,c))) #以此从每个对象中取一个元素打包成元组所组成的列表，元组数量取决于最短的对象'''
    a = [2,4,1,5,9,8,6]

